Starting at the spinal cord, the subdivisions of the brachial plexus are (in order) ________.
A) roots, trunks, divisions, and cords
B) roots, divisions, cords, and trunks
C) trunks, divisions, cords, and roots
D) divisions, roots, trunks, and cords

Question

Quizplus · Accepted Answer

The subdivisions of the brachial plexus begin with the roots, followed by the trunks, then the divisions, and finally the cords. This is the correct sequence in which the nerves branch off and innervate the upper extremity.

Starting at the Spinal Cord, the Subdivisions of the Brachial